Walnut Street over Yough Csx Local Sts
Fair Condition95 years old12,916 vehicles/day
Location
| State | Pennsylvania |
| County | Allegheny |
| Location | Boston Bridge |
| Carries | Walnut Street |
| Crosses | Yough Csx Local Sts |
| Coordinates | 40.31244, -79.82802 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 5 (Fair) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel Continuous |
| Design | Truss - Thru |
| Total Length | 1182.1 ft (360.3 m) |
| Max Span | 419.9 ft (128 m) |
| Deck Width | 32.8 ft (10 m) |
| Deck Area | 3,603 sq m |
| Main Spans | 3 |
| Year Built | 1931 (reconstructed 2010) |
Traffic
| Avg Daily Traffic | 12,916 (2023) |
| Truck Traffic | 4% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 4 |
Inspection & Ownership
| Last Inspection | 724 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is eligible for the National Register |
| Structure Number | 000000000000684 |